Answer:
[tex]\large \boxed{\text{Two tablets per day; half a tablet per dose}}[/tex]
Explanation:
1. Convert pounds to kilograms
[tex]\text{Body weight} = \text{38 lb} \times \dfrac{\text{1 kg}}{\text{2.205 kg}} = \text{17.2 kg}[/tex]
2. Convert kilograms of body weight to milligrams of acyclovir
[tex]\text{Mass of acyclovir} = \text{17.2 kg} \times \dfrac{\text{80 mg acyclovir}}{\text{1 kg}} = \text{1380 mg acyclovir }[/tex]
3. Convert milligrams of acyclovir to number of tablets
[tex]\text{No. of tablets} = \text{1380 mg} \times \dfrac{\text{1 tablet}}{\text{700 mg}} = \textbf{2 tablets}[/tex]
4. Calculate the tablets per dose
The child must receive two tablets in four doses.
[tex]\text{Tablets per dose} = \dfrac{\text{2 tablets}}{\text{4 doses}} = \textbf{0.5 tablets per dose}\\\\\text{The child must receive $\large \boxed{\textbf{two tablets per day and half a tablet per dose}}$}[/tex]
